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(No Model.) 2 SheetsSheet 1. O. R. J. WOHLANG. ADDING AND COUNTING APPARATUS.

No. 469,766. Patented Mar. 1, 1892.

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(No Model.)

0. R. J. WOHLANG. ADDING AND COUNTING APPARATUS.

No. 469,766. Patented Mar. 1, 1892.

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UNITED STATES PATENT OEEIcE.

OTTO RIIDOLF .IOl-IANN IVOIIIJANG, OF ALTONA, GERMANY.

ADDING AND COUNTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 469,766, dated March 1, 1892.

Lpplioation filed October 15,1891. Serial No. 408,801. (No model.) Patentedin Germany October 31, 1890, No. 59,118.

To (LZZ whom it may concern;

Be it known that I, OTTO RUDOLF JOHANN IVOHLANG, a subject of the Emperor of Austria-Hungary, residing at Altona, in the German Empire, have invented certain new and useful Improvements in Adding and Counting Apparatus, (for which I have secured Letters Patent in Germany, No. 59,118, dated October 31, 1890,) of which the following is a specification.

This invention relates to adding and counting or registering apparatus which may be in size and exterior shape similar to a watch, and is provided, also, with bow and winding knob, the adding together of numbers containing one or more figures, or the continuous registering of revolutions of a shaft or the like takes place by the corresponding turning movement of thewinding-knob. The dial or index plate is provided with openings for two rows of numbers arranged one below the other, and between these with a third opening for permitting parts of the mechanismto be observed. The bottom row of figures, indicating the numbers to be added,is first put back to naught each time before setting the same to another number. This action does not, however, affect the top row of figures, which from the position previously occupied is turned forward with the bottom row of figures, so that the numberindicated by the latter will always be in the top row of figures. In the starting position of the mechanism the lower row of figures is not acted upon in the case of a definite direction of revolutiombut the number of revolutions are indicated in simple progression by means of the top row of figures. Under these circumstances the apparatus forms a simple counting mechanism. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a section through the case of the apparatus in a plane parallel with the dial or index plate; Fig. 2, a cross-section of the apparatus; Fig. 3, a plan, partly in section, of the same, showing the inner working parts in a position, in which are set two nu mbers of the units and the tens in both rows. Fig.4 shows laid out in a plane that part of the actuating-spindle b which forms a steep spiral channel; Fig. 5, a side elevation of one of the toothed stop wheels or disks which serve to hold the top index-wheels in the required position. All these figures are drawn in enlarged scale, while Fig. 6 represents an outside view of the apparatus in full size.

The same letters refer to the same or similar parts throughout the several views.

a is the winding-knob by which the numbers are set by the operator. The turning movement of the same is transmitted to a spindle I) in a frame It, chiefly by small toothed wheels a a in the proportion of two to one. On this spindle is loosely arranged a socket c, with a toothed wheel or disk (I, which is always pressed in the starting position by means of a spring f, held by a cap or shoulder Z). The circumference of the spindle b is provided with a steep helical channel Z2 exactly corresponding to one convolution, the two ends of the said channel being connected by means of a slot b, parallel with the axis of the spindle. The edge of the helical channel b situated nearest to the toothed wheel (I and which receives a pin g on the above-mention e d socket c, is cut out in the form of steps 0 l 2 7, each step corresponding to the diameter of the pin g. The edges of the openings or recesses O 1 2 7 formed in this manner are also arranged helically, so that upon the revolution of the spindle b in the direction of the arrow, Fig. 3, the pin 9 on the socket 0 will turn consecutively along the short helical path, and then under the action of the spring f will be caused to fall consecutively into the deep steps 0 1 2 7. This is, however, only possible when the socket c is held in a suitable position. For this purpose I provide the index wheels or disks 1' is, formed into toothed wheels, which, after the proper movement'of the toothed wheel (I left to right 011 the above-mentioned spindle I), will come consecutively in direct contact with the latter.

On their peripheral faces the teeth of the index wheels or disks -i 7o carry consecutively the numbers 0 to O. The top index-wheels 11 are held in the required position by means of stop wheels or disks Z and spring-catches m, adapted to engage with the latter, so that in the turning movement of the spindle I) the socket c and toothed wheel cl will be locked. As is usually the case, the index-wheels show wheel must be shifted from right to left to a higher number, so that these wheels pass for instance, in their indication of results from 19 to 20 or from 99 to 100. For this purpose each of the stop wheels or disks Z is secured toa wheel p, which is opposite the adjoining row of figures, (from :right to left,) and which is provided at a suitable point with atooth W p the socket c and wheel (I, when the latter q. At every complete revolution of the stop wheels or disks Z or one of the index-wheels i this tooth engages with the next index wheel or disk 2' in order to turn this one number farther.

Theindex wheel or diski representing the units is of such width that the toothed wheel (I, hereinbefore referred to in its. original position, will be in contact with the same, while the units-wheel 76 of the bottom row will not in this position be reached by the said wheel rotating shaft in order to be carried round with the same. As the movement of this winding-knob is. transmitted to the spindle in the proportion of two to one, the number. of revolutions indicated by the apparatus has simply to be divided by two.

When the apparatus is employed for the addition of numbers containing one'or more figures, the winding-knob d is first turned'in the direction of the arrow, Fig. 6, until the pin g is heard to fall into the first notch 1 and the toothed wheel 61 comes directly opposite the units wheelsor disks 1' k, which can be observed through the central opening a in the dial; Then. the winding-knob a is turned in the opposite direction, so that the two units'wheels ordisks 1' and 76 are simultaneously carried with the same and are, for instance, placed on the number 6, Fig. 3, beingv the units-numeral. After the twov units wheels or. disks 1'70 have been properly adjusted: the winding-knob a is turned once more so farback that the aforesaid pin g on the socket c falls into the notch. 2 and the small wheel cl on the spindle comes opposite the tens-wheels i and it. These are then adjusted similarly to the units wheels or disks i'and'k to the desired number, for instance, 1, Fig. 3, by turning thewinding-knob a in the direction of the arrow, Fig. 1, whereupon the latter isagain turned so far back that the pin.falls.into the following notch 3, causing thev small wheel d on the spindle to come in contact with the two-hundreds index wheels or disks 2' and 76. This, as well as eachfollowing pair of wheels or disks, is. set inthe same manner as the preceding wheels until the pin 9 reaches the last notch 7. Upon a short backward movement in the direction of the arrow, Fig. 6, the pin g. reaches the long tudinal slot b extending from the last-mentioned notch 7, so that the socket c and the toothed wheel at on the spindle, under the action of the aforesaid spring f in the axial direction, are caused to return to their original positions, Fig. 1, and the same operation can be repeated.

In the step-by step forward movement of leaves the adjusted lower index wheel or disk is a pin 23, carried by the socket c, is caused to 'move into the notch betweentheteethof this wheel or disk It, in order to secure the latter exactly in thedesired position and hold 1t therein against the action of a spiral spring 1:, arranged in the interior of each wheel or disk is. The said pin, which is held l-n the bearings h and it, engages, through the medium of a forked arm 8, withan annular slot 0" in the socket 0, so that it will follow the straight,but not the curved, moven1entotthe same, and hence advance forwardly in a straight line; Y

The springs o in the index wheels or disks 1; are used for the purpose of bringing back these wheels or disksin each case automatically to naught upon the return of the socket 0, wheel d, and pin t to the original position, so that they always commence their movement from naught, as hereinbefore stated. One end of these springs is connected withthe boss of theindex wheels or disks 7c, and eachofthe other ends with a pin yon plates to, arranged between the index wheels or disks 7c andeffecting the adjustment tovnaught, by Ineansof a striking-pin w, provided on the inside of the index wheels or disks,,the said striking-pin coming in contact with the pin y on the plate w, held in any suitable-way on their shaft, Fig. 2. The other index -wheels 11 arenot provided with these springs, but are heldby means of catches m when thewheel d onthe spindle b returns to the starting-point, sothat they will remain upon the first number to which they are set, and starting from thiscontinue their movement. When brought forward to another number, these wheels orv disks therefore must eventually show the totals. hen the aforesaid wheels '5 have reached the end of their movement, the socket c returns, as in the previous instance, .to'the starting-point and the whole series of index wheels or disks 76 return to 0, while the other index-wheels 1; will remain unchanged inth-e last position, so that another number; set:

upon the index wheels 70 will be added tothe sum indicated by the. index wheels ordisks t'.

In order to facilitatethe movement of the toothed wheel cl on the spindle-bfrom oneindex wheel or disk to another and alsothe descent of the aforesaid pin t into its place,

ranged on both sides of each separate tooth on the wheel (Z and also on the front end of the said pin t, such cones or conical projections forcing the wheels or disks in each case into their proper positions. To maintain the index -wheels 11 and stop-wheels Z in their proper positions relatively to each other and to prevent the adjoining wheels or disks being disturbed thereby, a space at is left between each stop-wheel Z and a wheel or disk 1) connected to the same. AplateZ is placed in said space, one end of which plate projects above the shaft 1" of the index-wheels 1'.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. An adding and counting or registering apparatus having two sets of index wheels or disks, two parallel axes or shafts carrying said wheels or disks, a spindle having a stepped helical channel and carrying a toothed wheel and journaled between and adapted to actuate said disks in such a manner that on rotating the spindle in a prescribed directiona toothed wheel is caused to move axially on the spindle and to engage consecutively with the said two sets of toothed index wheels or disks, so that on rotating the spindle in the opposite direction those index wheels or disks at the time engaging with the toothed wheel on the spindle will partake of the rotating motion of the same, while the said toothed wheel on the spindle at the end of the said spiral channel is caused to return to its original position, whereby the one series of the index wheels or disks are turned back to 0, while the other remain in the position occupied in order to continue consecutively their movement when a new number is set by rotating the said spindle and the toothed wheel on the same, so that the last set number may be added to the one previously indicated by the index-wheels kept in the position occupied, substantially as set forth.

2. The combination, in an adding and counting or registering apparatus, of the spindle I), having cut out in the circumference a helical channel 12 in the form of steps, the socket c, engaging with said helical channel, and a toothed wheel cl, secured to the said socket, with two series of index-wheels i and it, two parallel axes or shafts carrying said indexwheels, and the winding-knob a, adapted to actuate said mechanism, the whole inclosed by a case, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 17th day of August, 1891.

OTTO RUDOLF JOIIANN WOIILANG.

\Vitnesses:

ALEXANDER SPEOHT, DIEDRICH PETERSEN. 

